U-1775: Switzerland

3 3/4" X 4 7/8" (94mm X 124mm)

 

(side ear)  / 5092

{Swiss Langenthal}

 

Picture courtesy Bob Berry

3 5/8" X 4 3/4" (92mm X 121mm)

 

(skirt inkstamp) 

{Swiss Langenthal}

.

 

Picture courtesy Bob Berry

3 3/4" X 5" (92mm X 127mm)

 

(skirt incuse)  / 5092

{Swiss Langenthal}

 

Picture courtesy Bob Berry

U number assignment from Worldwide Porcelain Insulators by Marilyn Albers & Jack Tod.


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